Question 1

Neutrons can be represented as n+.

Accepted Answer

A) True 
 B)False  False

Question 2

Which of the following possess the same number of valence electrons?

Accepted Answer

A)  Lithium and Cesium 
B)  Boron and Magnesium 
C)  Carbon and Nitrogen 
D)  Potassium and Barium 
E)  None of the above. 
A)  Lithium and Cesium 
B)  Boron and Magnesium 
C)  Carbon and Nitrogen 
D)  Potassium and Barium 
E)  None of the above. A

Question 3

The most abundant element in the Earth's hydrosphere is _____.

Accepted Answer

A)  iron 
B)  oxygen 
C)  nitrogen 
D)  carbon 
E)  silicon 
A)  iron 
B)  oxygen 
C)  nitrogen 
D)  carbon 
E)  silicon B

Question 4

There are seven periods on the modern periodic table.

Accepted Answer

A) True 
 B)False

Question 5

Sodium and Barium do not possess similar chemical properties.

Accepted Answer

A) True 
 B)False

Question 6

Weight is the ______.

Accepted Answer

A)  measure of a body's resistance to acceleration 
B)  force due to the pull of gravity on an object 
C)  volume of an object 
D)  All of the above. 
E)  None of the above. 
A)  measure of a body's resistance to acceleration 
B)  force due to the pull of gravity on an object 
C)  volume of an object 
D)  All of the above. 
E)  None of the above.

Question 7

Saturn's gravity is far greater than the Earth's gravity. Suppose a woman weighs 140 pounds on Earth. On the moon his weight will be ____.

Accepted Answer

A)  greater than 140 pounds 
B)  140 pounds 
C)  less than 140 pounds 
D)  Unable to determine. 
E)  None of the above. 
A)  greater than 140 pounds 
B)  140 pounds 
C)  less than 140 pounds 
D)  Unable to determine. 
E)  None of the above.

Question 8

Greater force is required to move a 500 pound block verses a 750 pound block.

Accepted Answer

A) True 
 B)False

Question 9

Greater force is needed to move objects of greater mass.

Accepted Answer

A) True 
 B)False

Question 10

The nucleus of the atom has positive charge inside it.

Accepted Answer

A) True 
 B)False

Question 11

The subatomic particle that is negatively charged is the ______.

Accepted Answer

A)  proton 
B)  electron 
C)  neutron 
D)  atom 
E)  None of the above. 
A)  proton 
B)  electron 
C)  neutron 
D)  atom 
E)  None of the above.

Question 12

According to the modern periodic table, iron naturally occurs as a liquid.

Accepted Answer

A) True 
 B)False

Question 13

When an electron is goes from a higher energy state to a lower energy state, that electron must have absorbed energy.

Accepted Answer

A) True 
 B)False

Question 14

John Dalton found that atoms combine together to form elements.

Accepted Answer

A) True 
 B)False

Question 15

The nucleus of the atom is relatively large when compared to the radius of the same atom.

Accepted Answer

A) True 
 B)False

Question 16

C-13 has one less neutron than C-14.

Accepted Answer

A) True 
 B)False

Question 17

The atomic number (i.e., the number of protons) distinguishes one type of element from another.

Accepted Answer

A) True 
 B)False

Question 18

The weight of an object is unaffected by gravity.

Accepted Answer

A) True 
 B)False

Question 19

Nitrogen has _____protons, _____electrons, and ______neutrons.

Accepted Answer

A)  16, 16, 16 
B)  8, 8, 8 
C)  6, 6, 6 
D)  7, 7, 7 
E)  None of the above. 
A)  16, 16, 16 
B)  8, 8, 8 
C)  6, 6, 6 
D)  7, 7, 7 
E)  None of the above.

Question 20

Metalloids _________

Accepted Answer

A)  tend to be shiny solids and are good conductors of heat and electricity. 
B)  share properties of metals and nonmetals. 
C)  are often gases or brittle solids and are poor conductors of heat and electricity. 
A)  tend to be shiny solids and are good conductors of heat and electricity. 
B)  share properties of metals and nonmetals. 
C)  are often gases or brittle solids and are poor conductors of heat and electricity.

Neutrons can be represented as n⁺.

Which of the following possess the same number of valence electrons?

The most abundant element in the Earth's hydrosphere is _____.

There are seven periods on the modern periodic table.

Sodium and Barium do not possess similar chemical properties.

Weight is the ______.

Saturn's gravity is far greater than the Earth's gravity. Suppose a woman weighs 140 pounds on Earth. On the moon his weight will be ____.

Greater force is required to move a 500 pound block verses a 750 pound block.

Greater force is needed to move objects of greater mass.

The nucleus of the atom has positive charge inside it.

The subatomic particle that is negatively charged is the ______.

According to the modern periodic table, iron naturally occurs as a liquid.

When an electron is goes from a higher energy state to a lower energy state, that electron must have absorbed energy.

John Dalton found that atoms combine together to form elements.

The nucleus of the atom is relatively large when compared to the radius of the same atom.

C-13 has one less neutron than C-14.

The atomic number (i.e., the number of protons) distinguishes one type of element from another.

The weight of an object is unaffected by gravity.

Nitrogen has ___protons, _electrons, and ____neutrons.

Metalloids _________

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Exam 2: Atoms and Elements

Neutrons can be represented as n+.

Which of the following possess the same number of valence electrons?

The most abundant element in the Earth's hydrosphere is _____.

There are seven periods on the modern periodic table.

Sodium and Barium do not possess similar chemical properties.

Weight is the ______.

Saturn's gravity is far greater than the Earth's gravity. Suppose a woman weighs 140 pounds on Earth. On the moon his weight will be ____.

Greater force is required to move a 500 pound block verses a 750 pound block.

Greater force is needed to move objects of greater mass.

The nucleus of the atom has positive charge inside it.

The subatomic particle that is negatively charged is the ______.

According to the modern periodic table, iron naturally occurs as a liquid.

When an electron is goes from a higher energy state to a lower energy state, that electron must have absorbed energy.

John Dalton found that atoms combine together to form elements.

The nucleus of the atom is relatively large when compared to the radius of the same atom.

C-13 has one less neutron than C-14.

The atomic number (i.e., the number of protons) distinguishes one type of element from another.

The weight of an object is unaffected by gravity.

Nitrogen has _____protons, _____electrons, and ______neutrons.

Metalloids _________

Chemistry in Our World

Chemicals and Compounds

Energy and Society

Energy of Foods

Physical and Chemical Changes

Water and Other Solutions

Acid and Bases

Nuclear Chemistry

Energy From Electron Transfer

Cleaning Agents, Personal Care, and Cosmetics

Genes, Medicines and Drugs

Plastics, Pollution, and Sustainability

Micronutrients, Food Additives, and Food Safety

Filters

Neutrons can be represented as n⁺.

Nitrogen has ___protons, _electrons, and ____neutrons.